Drilling Industry Glossary
abandon
abnormal pressure
acidizing
air drilling
alkalinity mud
ambient
angle of deflection
annular blowout preventer
annular pressure
annulus
API cake thickness
API filtrate
API well number
axial load
azimuth
azimuth angle
API Well Number
API well # is a unique, permanent, numeric identifier assigned to each well drilled for oil and gas in the United States. The API Well number is one of many industry standards established by the American Petroleum Institute (API).
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